Gobi Heat Men's Dune Heated Vest - By combining lightweight, abrasion resistant nylon with conductive thread heating elements, this heated men's vest is your perfect solution for keeping warm on the go. The Dune Heated Men's Vest provides up to 10 hours of electric warmth! This vest has the ability to match any mood mother nature tosses at you. A low setting for those brisk days, medium for the cold ones and high for the bone chillingly "why do I live here?" ones! The ultra compact battery supplies 3x the juice of other competitors and has a USB port for easy mobile charging. Low, medium and high heat settings; 3 heating zones; Up to 10hrs battery life (while on low setting); Removable battery makes it easy to switch out for longer use; Machine washable; Water resistant - moisture wicking means water beads right off; Battery has LED Life Indicator lights and USB port for mobile charging; Style: DU;